- 1the deep [singular] (literary) the sea His body was committed to the deep (= he was buried at sea).
- 2the deep [singular], the deeps [plural] a deep part of something; the deepest part of something in the deep of night/winter (= in the middle of the night/of winter) (figurative) the deeps of sorrow the deeps of Loch Ness Word OriginOld English dēop (adjective), dīope, dēope (adverb), of Germanic origin; related to Dutch diep and German tief, also to dip.Word Familydeep adjective adverbdeeply adverbdeepen verbdepth noun
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